Controller with small memory card interface conversion USB Interface

Abstract

A controller with small memory card interface switch USB interface, the controller at least comprises a small memory interface connecting with small memory card electric interface in information appliances, an electric interface for imitating standard small memory card, microprocessor of instruction group and communication protocol and an USB interface for connecting with USB memory device; the controller enable the small memory card interface in information appliances to access the pocket disk and relative memory device connecting with USB interface by proper transfer mechanism.

1 . A controller with small memory card interface switch USB interface, the controller at least comprise a small memory interface connecting with small memory card electric interface in information appliances, an electric interface for imitating standard small memory card, microprocessor of instruction group and communication protocol and an USB interface for connecting with USB memory device; the controller enable the small memory card interface in information appliances to access the pocket disk and relative memory device connecting with USB interface by proper transfer mechanism.  
   
   
       2 . A controller with small memory card interface switch USB interface as claimed in  claim 1 , wherein data transfer buffer area being disposed between small memory card interface and USB interface to provide small memory card interface and USB interface with data transmission.  
   
   
       3 . A controller with small memory card interface switch USB interface as claimed in  claim 1  or  2 , wherein conversion controller therein provided with program card memory to storage the controlling program of controlling microprocessor to simulate small memory card, access date, and access control program of USB interface storage device.  
   
   
       4 . A controller with small memory card interface switch USB interface as claimed in  claim 1  or  2 , wherein the conversion controller therein provided with electric power manage circuit and/or PLL oscillator circuit to maintain the normal operation of conversion controller.  
   
   
       5 . A controller with small memory card interface switch USB interface as claimed in  claim 1 , wherein conversion controller therein provided with external memory interface to increase external memory, to increase the capacity of buffer area and used for data transfer buffer area.  
   
   
       6 . A controller with small memory card interface switch USB interface as claimed in  claim 1 , wherein USB storage device is silicon disk machine/hard silicon disk machine/disk/diskette machine.  
   
   
       7 . A controller with small memory card interface switch USB interface as claimed in  claim 1 , wherein the conversion controller maybe in-build in similar small memory card, the similar CF card being provided on one side thereof a small memory card interface to electrically connect with small memory card electric interface of information appliances, and in interior thereof circuit board to electrically connect with conversion controller and said small memory card interface, the USB interface used for connecting with pocket disk (Thumbdrives) and/or relative storage device with USB interface, so by the conversion device enable small memory card electric interface of information appliances conversion to access to USB pocket disk and USB relative storage device.  
   
   
       8 . A controller with small memory card interface switch USB interface as claimed in  claim 7 , wherein the similar memory card may be CF card, SD card, MMC card, MS card and small memory card with controller.  
   
   
       9 . A controller with small memory card interface switch USB interface as claimed in  claim 1 , wherein USB interface of similar memory card is in-build and USB style with cable.